The blood donation is the procedure through one person who needs blood due to an accident,surgery,disease or any other reason, can obtain this element by a blood donor, this is because the blood is an element which hasn´t be synthetized.
Generally the blood´s sell is an act strictely prohibited, it must be obtained only by own and free decision (voluntarily), Some countries as: Uruguay,España,Argentina and Costa Rica have very well-organized blood doner public system, with a lot of criterion for the acceptance of the blood.
The persons who desire be a donor must be/has:
Between 18 and 65 years old
Have a light breakfast such as an azucar infusion, some cookies with water,avoid milk and fat.
Don´t have consume aspirine 72 hours previous to the donation.
Must be healthy persons, without cough, sore throat or under medic treatment.
Without any perforation or tatto from at least one year old( if you have one six months ago, by example, you must wait six months more in order to be accepted as a donor).
Have been all their vacuums applied three months ago (some vacuum can disturbed the use of the blood in a determined time).
Have a weight of at least 51kg.
Generally, when a person goes to a donor blood, is asked about some antecedents in order to known if the blood is available to be donated, and after that the blood is analized in search of diseases, if all the conditions are good the blood can be use to be donated.
In order to be grateful for the blood donors the 14th June is the Blood Donor´s Mondial Day.